System and method for controlling power of a computer terminal with an external power source
AssigneeSymbol Technologies, Inc.
InventorKarl Keppeler
Life of this patent
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Abstract
Described is system and method for controlling power of a computing terminal with an external power source. In particular, a voltage is measured within a system using a voltage detector of a computing terminal. The system includes a battery which provides power to the system and the terminal. When the measured voltage changes to a first level, a first procedure is initiated to monitor the voltage for a time period. Upon expiration of the time period, if the monitored voltage has not changed to a second level, a second procedure is initiated to power off the terminal.
Claims24
A method, comprising:
- (a) measuring a voltage within a system by a voltage detector of a computing terminal, the system including a battery providing power to the system and the terminal;
- (b) when the measured voltage changes to a first level, initiating a first procedure to monitor the voltage for a time period;
- and
- (c) upon expiration of the time period, if the monitored voltage has not changed to a second level, initiating a second procedure to power off the terminal.
A system, comprising:
- a machine including a battery;
- and
- a computing terminal connected to the machine to obtain power from the battery, the terminal including a processor and a voltage detector which measure a voltage of the machine,
- wherein, when a change of the measured voltage to a first level is detected by the detector, the processor initiates a first procedure to monitor the voltage for a time period, and
- wherein upon expiration of the time period, if the monitored voltage has not changed to a second level, the processor initiates a second procedure to power off the terminal.
A computing terminal, comprising:
- a voltage detector measuring a voltage of a machine, the machine including a battery;
- a power arrangement connected to the battery to obtain a power for the terminal;
- and
- a processor connected to the detector and the power arrangement,
- wherein, when a change of the measured voltage to a first level is detected by the detector, the processor initiates a first procedure to monitor the voltage for a time period, and
- wherein upon expiration of the time period, if the monitored voltage has not changed to a second level, the processor initiates a second procedure to power off the terminal.
Dependencies are inferred from the claim text.